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HOME / PRODUCT CATEGORIES / GPS BOARDS / SPARKFUN GPS-RTK BOARD - NEO-M8P-2 (QWIIC)
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SparkFun GPS-RTK Board - NEO-M8P-2
(Qwiic)
GPS-15005
4
DESCRIPTION FEATURES DOCUMENTS
Voltage: 5V or 3.3V but all logic is 3.3V
Current: ~35mA (varies with constellations and tracking state)
Time to First Fix: 29s (cold), 1s (hot)
Max Navigation Rate:
PVT (basic location over UBX binary protocol) - 10Hz
RTK - 5Hz
Moving Baseline RTK - 4Hz
Raw - 10Hz
Horizontal Position Accuracy:
2.5m without RTK
0.025m with RTK
2x Qwiic Connectors
Weight: 6.3g
Dimensions: 40.6mm x 33mm (1.6in x 1.3in)
Tags
BREAKOUT GNSS GPS I2C NEO-M8P-2 QWIIC RTK SPI UART U-BLOX
USB
SparkFun GPS-RTK Board - NEO-M8P-2 (Qwiic) Product Help and Resources
TUTORIALS VIDEOS SKILLS NEEDED
GPS-RTK Hookup Guide
SEPTEMBER 13, 2018
Find out where you are! Use this
easy hook-up guide to get up and
running with the SparkFun high
precision GPS-RTK board.
Getting Started with U-
Center
SEPTEMBER 13, 2018
Learn the tips and tricks to use
the u-blox software tool to
configure your GPS receiver.
What is GPS RTK?
SEPTEMBER 14, 2018
Learn about the latest generation
of GPS and GNSS receivers to
get 2.5cm positional accuracy!
Customer Reviews
COMMENTS 7REVIEWS 4
4.8 out of 5
Based on 4 ratings:
2 of 2 found this helpful:
reliable cm positioning
about 3 months ago by Member #894355 verified purchaser
I have used u-blox chips for years for surveying purposes. I collect hours of GPS data at a single, fixed position
using a good, magnetic-base GPS antenna on a 100 mm ground plane. I then download the same time period
of GPS data from a nearby NGS CORS station 6 km away to act as my fixed-position base. The open-source
RTKLIB package usually combines these measurements to place my antenna within a 1 cm circle of error.
Recently two, consecutive, 24-hour measurements from a fixed antenna on my roof fell within 2 mm of each
other.
Previously I had used evaluation kits from u-blox with their earlier chips. I had often run into frustrating software
hang-ups with the u-blox u-center control software running on Windows 10 laptop over long integrations. I
decided to switch to a real-time Arduino/Sparkfun system with the M8P. The combination of the u-blox software
on Windows 10 with the Sparkfun GPS-RTK board has already proven to be a much more reliable system. I’m
still building the Arduino control/logging system to eliminate the need for a laptop on site.
Good product.
Excellent RTK Testbed, Especially with the Qwiic Connectors
about a month ago by Member #1249684 verified purchaser
I got a pair of these boards and am using them in my lab, along with a couple Blackboards and LCDs. I set up
my own RTCM3 base station, as I don’t have one nearby to leverage.
Nathan Seidle’s Ublox library works great! I would like to see a couple of things added to the Library, or
perhaps a discussion on how to do these two things: 1) How to add a command to the Library, for example,
how to command the base station data rate from 1Hz to 5Hz. 2) How to pull other parameters from the M8P, for
example, the current 3D accuracy parameter.
Any hints on these is welcome! I’m slogging through the 409-page Protocol Spec, but not seeing how to make
the mods to the Library.
Great product! Don
Most accurate and precise board so far
last month by Member #16991 verified purchaser
No other board delivers this accuracy and precision, looking firward to a potential ZED-F9P successor!
Working nicely
about 2 weeks ago by Member #1460730 verified purchaser
I got this board hooked up to a lcd and BlackBoard using Qwiic and ublox / ucenter software on my Mac - via
parallels running Windows 10.
However I am puzzeled. People talk about using pairs. A base and a rover. Ok. But - I use a single receiver to
define the absolute position of a dronereference plate A on the ground. Then take the system to the next
calibration point B, take its position, go to point C and so on. Later, when starting to proces the data, I use the
plates positions info. Is it correct to assume that the positioning is within 2.5 cm for each?
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and, in lieu of a way to order easy replacements, decided to start his
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